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US Patent: 1,815,562
Hydraulic Chuck
Patentee: Louis E. Godfriaux (exact or similar names) - Madison, Dane County, WI USPTO Classifications: 279/106, 279/119, 279/141, 279/4.04, 279/4.12 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Gisholt Machine Co. - Madison, Dane County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 28, 1930 Granted: Jul. 21, 1931 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Gisholt Machine Co.

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